<!DOCTYPE html>
<html lang="en">

<head>
    <title>html5</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1"> </head>
<style type="text/css">
    #div1 {
        width: 100px;
        height: 40px;
        padding: 10px;
        border: 1px solid #aaaaaa;
    }
</style>
<script>
    function allowDrop(ev) {
        ev.preventDefault();
    }
    function drag(ev) {
        ev.dataTransfer.setData("Text", ev.target.id);
    }
    function drop(ev) {
        ev.preventDefault();
        var data = ev.dataTransfer.getData("Text");
        ev.target.appendChild(document.getElementById(data));
    }
</script>

<body>
    <p>拖动图片到矩形框中:</p>
    <div id="div1" ondrop="drop(event)"
        ondragover="allowDrop(event)"></div>
    <br>
    <img id="drag1" src="./drag-drop.JPG" draggable="true"
        ondragstart="drag(event)" width="95" height="30"> 
    
    </body>

</html>